Rib tightener for gem innersoles



July 24, 1923- 'T. F. HART- RIB TIGHTENER FOR GEM lNNERSOLES "Filed May19, 1917 2 sheets-sheet 1 July 24, 1923-l 1,462,792

, 4. T7. F. HART RIB TIGHTENER 'FORA GEM INNERSOLES Filed May 19, 1917 Y*A2 slveefcs-Shegn;` 2

Patented July 24, 1923.

man

Tenir for-FICE.

THOMAS F.1HART, OF LYNN, MASSACHUSETTS, ASSIGNOR TO HAMEL vSHOEMACHINERY COMPANY, OF LYNN, MASSACHUSETTS, A CORPORATION OFMASSACHUSETTS.

RIB TIGHTENER FOR GEM INNERSOLES.

Application filed May 19,

To all whom t may concern:

Be it knownthat I, THOMAS F.

HART, a citizen of the United States, and resident of `Lynn, county ofEssex, Commonwealth ofl the rib thereby causing such material to adherefirmly to the leather of the innersole in the angle, this pressing ofthe reinforce material beingv performed by a tamping or hammering actionand being commonly termed rib tightening. A prime object of theinvention is to provide a mechanism of this kind capable of greatrapidity and fie-xibility of operation and permitting accurate andperfect manipulation for tightening the rib and pressing home the canvaslayereven 4up to the extreme points of very pointed innersoles such asfound in the current styles ofladies shoes. The mechanism tobedescribedis especially adapted for this last named purpose by reason ofhaving a free rotating ball bearing table constituting the work rest inconjunction with a vibrating tamping tool or member operative at theinner side of the rib in cooperation with a driven presser discoperative to press home the canvas into the corner at the outer side ofthe rib. The invention also has to do with improved features of`mounting and connections whereby the vibrating tamping tool is movedautomatically out of the way upon a depression of the table for theinsertion of work, without disturbing the operative connection of saidvibrating tool or otherwise interfering with the continuity of operativemovement. A still further object is to provide an improved constructionof free rotating ball bearing table constituting the workl rest incombination with a driven rib tightening" disc operative on the outeredge of the rib4 and a vibrating obliquely mounted tool operative on theinward side of 1917. Serial No. 169,674.

the rib. The foregoingand other objects andt advantages of the inventionwill more fully appear from the followingdetailed description, and thedistinctive features of novelty will be pointed out in the appendedclaims.

Referring to the drawings:

Fig,4 1 is a side elevation showing the essential portions of a machineconstructed in accordance with my invention, a part thereof being brokenaway and another part in section;

Fig. 2 is a detail plan view of the work holding table;V

Fig. 3 is a front view of the machine with a part of the base brokenaway;

t1g. 4 is a partial side elevation corresponding to Fig-1 but showingthe operative parts in action on a work piece; and

Fig. 5 is a partial side relation of parts when the table is depressedto receive a fresh piece of work.

A ,suitable pedestal and base frame work is indicated at l0 havingspaced apart upstanding bearing posts l1, l2 `on the top thereof inwhich is journaled a horizontal shaft 13 which constitutes the driveshaft of the machine and which is equipped with a suitable drive pulley14 and a hand or balview showing the ance wheel l5. This shaft has fixedthereon a worm 16 in driving engagement' with a worm wheel 17 fixed atthe upper end of a shaft 18 journaled vertically in bearings 19 of theframe work, this shaft having fixed at its lower end a bevel skew gear20 in driving engagement with another skew gear 21 fixed on a shaft 22journaled in bearings 23 of the frame to extend obliquely upward towardthe front of the machine, this shaft having fixed at its top end a feedwheel 24. This wheel 24 is beveled and serrated on its lower edge, suchbevel being at such an angle -with reference `to the inclined mountingof the shaft 22 that the outer lower edge of said beveled face issubstantially horizontal and vertically opposite the inner edgepor# tionof a rotatable table 25. The table 25 also has its edge portion serratedas indicated at 26 and this table is mounted for free rotation on asupport 2"?-7 having preferably a ball bearing rest 28 on said supportso as to permit the greatest freedom of movement. The support 27 iscarried at the upper end of a post 29 vertically slidable in spacedapart bracket bearings 30 extending at the Vits free extremity arrangedto engage in the` front of the frame work. This table sup port isnormally held yieldingly at anupper limit offmovement which isdetermined by a collar 3l`adjustably fixed thereon, by a coil spring 32encircling the same and reacting between the lower x:bearing element 30and a cross pin 33 on-said post. The table thus held may be depressedfor the insertion or manipulation of work by a connection 34 to asuitable treadle (not shown). At 35 is indicated a vibratory tampingtool or hammerwhich .as herein shown extends obliquely to the surface ofthe work table and has its operative extremity adjacent the rear edgeofsaid table, this tool being carried by a holder comprising a bellcrank lever lhaving arms 37, 39 upon the former of which the tool is.adjustablymounted by means of a bracket 36. Thisbell crank is fulcrumedin a bearing block 38, and its arm 39, which extends vertically, isprovided with a roll at cam groove 40 of acam 4l which is fixed in theforward end of the shaft 13. AAs herein shown the tool andthe axes ofthe work table and feed wheelall lie in substantially the same planewhereby the area of contact is reducedto aminimum, whichis of great im-vportance j in operating upon extremely pointed soles.

` The bearing block 3S upon which is fulcrumed the bell crank, abovedescribed, is carried 4at .the forward end of a bar -42 which isniountedto slide horizontally in a suitable'bearing in the frame, and which isnormally urged in a rearward direction by means of a coil spring 43surrounding the bar and having one end bearing against the lframe andthe opposite end against a collar 44 yfired upon the end of the bar. Anadjustable stop pin 38a is carried by the block `38 and is arranged toengage a fixed seat on the `frame whereby the degree of rearwardmovement of the bar 42 under the action of spring 43 may beideterminedAThe bar 42 being shown as round, is kept fromturning by having a lug 45thereon slidably guided in aslot 46 of the frame. In accordance with myinvention means is provided whereby as the table is depressedforinserting a new piece of work, the tamping` tool 35 is simultaneouslyswung npwards and outwards so as to afford'ainple clearance. For thispurpose I provide a bell Acrank `lever fulcrumed at 47 to` the frame andhaving the end of one arm 48 c thereoffengaging the rear side of thebear ing block 38, the other and horizontally ertendingarm 49 of saidlever being provided with` an adjustable pin 50 engaging the lower sideof the table support 27.

1 It may now be understood that upon the table. being depressed by the'treadle connection 34, the tamping tool will be swung -upward andoutward ask seen in Fig. 5, and

an innersole I may be placed on the table, the collar 3l having beenadjusted according to the thickness of the b'atchxofv innersoles to beihandled So that the table is permitted to rise just far enough to bringthe feed `wheel 24 into action. Then, the stop screw 38a having beenlikewise `set in adjusted position sothat the tamping tool 35 willoperate at the correctv range for the particular innersole stockin hand,the innersole may be presented to the action of the feed wheel 24 andtamping tool 35 so that the canvas will be pressed tightly and firmlyinto the corners of the rib at e-ach side, the required feed movement toreach all parts of therib being easily and rapidly obtained since thestock is resting on the ball bearing table 2S. As has been above noted,the fulcrum for the tool holder constituted by the arms 37, 39 ismovable in a forward and rearward direction, and maybe considered asconstituting a floating bearing for said holder. By this arrangement notonly is an automatic raising of the tool 35 upon depression of the tablesecured, but there is also provided a cushioning of the blow of the tool35 during normal operation. This latter action mayV be better understoodby considering that if the point of the toolis prevented in any mannerfrom reaching its normal downward limit of. movement under the action ofits operating cam, the tool holder may swing bodily about its point ofengagement with the cam, dueto the fact that its fulcrum is free to movein a forward direction against the actionvof Spring 43. desirable inthis type of machine as in the event that the tool 35 is improperly setor the reinforce material is wrinkled or bunched in the channel, thetool if rigidly held might be broken or if the mechanism itself shouldnot be damaged then the tool might be forced through the stock therebyspoiling the latter. According to the pres-V ent arrangement the spring43, togetherwith the floating bearing for 'the levers 37, 39., performthe function not only of permitting `separation of thetool and tableduring introduction of the work, but also ioo Such action of the ltoolis very of allowing the tool .to resiliently accoml attach a specialimportance to the co-operative arrai'xgement of the free moving rotating table in conjunction with the vibrate4 ing tamping tool actingonthe inner side of the rib, i. e., at` the front or outer side. of

the machine, since thereby; itis possible to work up into the extremeend o-f pointed i innersoles much more satisfactorilyr and f withoutmutilating the rib, than lis possible going description to indicate thescope of the invention. j

Having described my invention, what I claim as new and desire to secureby LetterspPatent is:

l. A machine of the class described having, in combination, a worksupport mounted for free rotation about a substantially vertical axis, afeed wheel providing a peripheral work-engaging surface substantiallyparallel to the surface of said work support and spaced therefrom, meansfor imparting rotary movement to said feed wheela tampingtool supported`for move* ment in a' plane substantially perpendicular to saidxsupport,and means for vibrating saidtool in said plane.v

2. In a shoe machine, in combination, a` disc-like work support mountedfor free rotation about a substantially vertical axis, a feed wheelmounted for rotation about an axis inclined to the vertical, said wheelhaving a serrated, peripheral surface disposed substantially parallel tothe'upper surface of said work support, meansfor imparting a continuousrotary movement to said feed wheel, a tamping tool mounted forreciprocation toward and from said work support and means forreciprocating the said tool.

8. A machine of the kind described, comprising a work table mounted forrotation and for bodily movement into and away from an operativeposition, a feed wheel mounted in inclined relation to said table andadjacent a peripheral portion thereof when said table is in operativeposition,

' .means for driving said wheel, and a tamping` tool mounted andconnected for vibration yin a plane substantially perpendicular to saidtable said tamping tool having a mounting connected to swing said toolaway from the working point as said table is low-ered to affordclearance for inserting a work piece.

Ll. A machine of the class described hav-v ing, in combination, adisc-like work table, means for supporting said table for free rotationabout, .and for bodily sliding movement along a substantially verticalaxis, a rotatable feed wheel of a, diameter relatively smaller `than thetable and mounted to turn about an axis inclined to the vertical, saidwheel having its peripheral surface spaced from but adjacent the uppersurface of said table and near one edge thereof, means for driving saidfeed wheel,

and a tamping tool constructed and arranged to vibrate in a planecontaining both of said axes.

5. A shoe working machine having, in combination, a disc-like work tablemountedfor free rotation about a substantially vertical axis and forbodily movement longitudinally of said axis, a feed wheel mounted torotate about an inclined axis and having its peripheral surface normallyclosely adjacent one edge of said table, means for rotating said feedwheel, a tamping tool, means for-reciprocating said tool toward and fromsaid table, and means for resiliently adjusting the initial position ofsaid tool relatively to the surface of the table.

6. A machine of the kind described, comprising a table mounted for freerotation and alsofor bodily movement to and from a working position, afeed wheel mounted in inclined relation to said table and adjacent aninner peripheral portion thereof when the table is in working position,means for imparting a rotary movement to said feed wheel, a tamping toolmounted and connected for vibration in a plane substantiallyperpendicular to said table and in a direction inclined thereto, and amovable mounting for said tool connected tobe moved with the movement ofsaid table whereby said tool is swung outward and away from said tableand from said feed wheel as the table is moved from working position, toafford clearance for inserting a work piece.

7. In a shoe machine, in combination, a work support, a tool havingawvorking stroke toward and from said support, means for imparting avibratory `movement' to said tool, and devices for simultaneously movingsaid support and tool from normal operative .position to permit readyinsertion of the -work therebetween.

8. In a shoe machine, in combination, a work table, a work feed elementlocated relatively to said table to permit its engagement with workresting thereon, a tool mounted for reciprocation toward and from saidtable and in a plane substantially per pendicular to the surfacethereof, means for reciprocating said tool, and devices forsimultaneously moving said table and tool in opposite directions tofacilitate insertion of the work.

9. In a machine for use in the manufacture of shoes, in combination, avibratory tool, a holder for said tool comprising a bell crank lever,and means for supporting and actuating said lever, so constructed andarranged that during normal operation said lever operates as a lever ofthe first order but under abnormal conditions may operate as a lever ofthe third order.

10. A machine of the class described having, in Combination7 a worksupportmov- `able toward and from operative position, a

and the work table whereby as the table Y is moved to and 'fromoperative position a` Lsimultaiieoiis adpistnient of the tool withreifereiicefto its normal. working position is effected. L i

1l. In a shoe inaehine,'in Coi'nbination7 a table constituting a worksupport mounted for bodily movement into and out/of operative position,a vibratory tamping tool Construoted and arranged to deliver a series ofblows against a piet@ 4of material supported upon said table, movablemeans :for supporting said tool, oonneetionsbetween said movable meansand the work table whereby movement of the latter is transmittedto theformer, and manual means for adjusting an element of said Connections.

12; A- shoe working inaohine having,f in

gaging said supportv and `said :table respectively whereby movement olthe table -is transmitted to said support.

137Av shoe machine having, inr combination, a depressibiework table, alever, a tool carried by one arm of said lever in Cooperative relationto work supported on said table,` a eain, a! follower therefor carriedbythe other arm o'l said lever, a movable fiil-` oruiii tor said lever,`aiidineans for siinul`` y taneously depressing said `work table andmoving said fulorum whereby said table and tool are separated to permitinsertion of work. i

ln testimony whereof I "have signed my naine to this speeieation.

i THOMAS FJHAR'r.

